Nozzle



D. P. CLEVELANDs NOZZLE. APPLICATION HLED'JULY 1, 1'9L9.

Patented Dea, 111.s 1920 @ww/whoa unirse STATE-s PATENT ori-lcs DAVID P.CLEVELAND, 0F DALLAS, TEXAS, .ASSIGNOR T0 UNIVERSAL PAINT REMOVEB ,ANDMOTOR CLEANING COMPANY, 0F DALLAS, TEXAS.

NOZZLE.

ASpecification of Letters Patent.

Patented Dec'. 14, 1920.

Application led July 7, 1919. Serial No. 309,220. I

Dallas,`in the county of Dallas and State. of.

Texas, have invented certain new and/use- 'ful Improvements in Nozzles,of which the following is a specification.

My invention relates to a nozzle for use in supplying a liquid paintremover to a painted surface; also for supplying steam as well as sandor the like, either separately or together as desired.

An important feature is 'the provision of means whereby steam underpressure may be utilized to propel or eject either the paint removingliquid or sand upon the surface to be treated, the steam also serving topreheat the liquid.

In carrying outv the invention a body is provided with separateconnections from sources of supply of steam, chemical and sand orequivalents and means for controlling the passage of each of thesethrough the body. A barrel is mounted on the head and the steam isdelivered into the'barrel ahead of the discharge points of the liquidand sand so as to create a suction and draw the said materials fromtheir passages and into the barrel. y

The invention will be more readily understood from a reading of thefollowing speciiication and by reference to the accompanying drawings,in which an example of the invention is shown' and wherein:

Figure 1 is, a side elevation of a nozzle embodying the invention,

Fig. 2 is a partial longitudinal sectional Fig. 3 is a cross-section onthe line 3-3 of Fi 2.

ign the drawings the numeral 5 designates a head or body provided witha` reduced portion in which a chamber 6 is formed. The head has a screwthreaded collar 7 which lreceives the flange 8 of a forwardly taperedbarrel 9; whereby a joint is formed permitting the barrel to be removed.

The head has a central steam passage l() with a chemical passage 11 onone side and a sand passage 12 on the other side. said passages allbeing substantially parallel. Each passage has a tapered seat 13 at thevrear end of the head to receive a corresponding nipple 14 provided on adisk 15 which has extensions 16 of the nipples on its opposite side. Asteam hose 17 is attached to the center extension, a chemical hose 18 toone ofthe other extensions and asand hose 19 is attached to the otherextension, the hose 18 and 19 being attached so as to communicate withthe passages 11 and 12 respectively. A coupling collar 20 surrounds thedisk and has screw threaded engagement with the rear end of theyhead asis shown in Fig. 2. By tightening the collar the disk is drawn registerwiththe passagethe plug being gwen a quarter turn to close the passage.

\Each plug has an enlarged body 22 seated in the head 'and projectinginto an externally threaded collar 24 on the surface of the head. Apacking cap 25 is screwed on each toward the head and the nippleslc'forced collar 24 and surrounds the stem 26 of the y valve. The Howthrough any passage may be cut off or controlled by turning the valvethereof.

From the passage 10 a steam tube 26 eX- tends a short distance into thebarrel 9. A tube 27 extends from the passage 12 into the collar 7; whilea tube 28 extends from the passage 11 and terminates also in the saidcollar. The steam tube extends beyond the other tubes so as to create asuction to draw liquid and material from the other tubes. Vhere it isdesired to discharge the liquid without the use of steam, an extensiontube 29 is screwed onto the end of the tube 28and terminates beyond theend of the-barrel so that the chemical will not run back into thebarrel.

The operation of the device or nozzle is as follows:

The steam valve 21 is suitably opened to admit'the desired volume ofsteam under pressure into the nozzle, which travels forwardly 'thereinat a rapid speed. When the passage 11 is opened, the liquid chemical orpaint remover will be drawn into and through the tube 28 by the suctioncreated by the discharging steam at the forward end ofthe tube. Thissteam also preheats the liquid chemical before it discharges from thetube 28. When the passage 12 is opened,

the nelydivided abrasive material, such as tinev thoroughly dried sand,is sucked into and through the tube 27, and discharged through thebarrel together With the steam. The nozzle is now brought in proximityto the painted surface to be treated. The mass discharging from thenozzle now impinges against the painted surface, and is found tothoroughly remove the paint therefrom or clean the same as the casemaybe.

It is to be understood that the sand may be used in conjunction with thechemical or the latter may be cut off and the steam and sand only used.

Both the sand and steam may be cut off and .by using the extension tube29 and elevating the chemical supply, the said chemical may be fed bygravity. When steam isused with the chemical the tube 29 is removed.

What I claim, is:

l. Infa nozzle, a head having passages therethrough, an attachingelement secured to the head and having conduits communicating With thepassages of the head and arranged to bev attached to Huid lconductors,valves in the head bisecting the passages, a

barrel joined onto the head, one of the passages of the head being forthe introduction of steam, a tube extending from the steam passage ofthe head into the barrel, and other tubes extending from the otherpassages and terminating short of the steam tube.

Q. In a nozzle, a head having passages therethrough, an attachingelement secured to the head and having conduits communieating with thepassages of the head and arranged to be attached to fluid conductors,valves in the head bisecting the passages, a barrel joined onto thehead, one of the passages of the head being for the introduction ofsteam, a tube extending from the steam passage of the head into thebarrel, and other tubes extending from the other passages andterminating short of the steam tube, and an extension tube attached toone of the last named tubes and projecting from the barrel.

In testimony whereof I aix my signature.

DAVID P. CLEVELAND.

